Home / 1,520,237.70-2,097,928.22-831,909.70

Finding the Fourth Proportional to 1,520,237.70, 2,097,928.22 and 831,909.70

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Solution

The fourth proportional to 1,520,237.70, 2,097,928.22 and 831,909.70 is: 1,148,035.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,237.70 : 2,097,928.22 = 831,909.70 : x
  2. Step 2: Convert to fraction form
    1,520,237.70/2,097,928.22 = 831,909.70/x
  3. Step 3: Cross multiply
    1,520,237.70x = 2,097,928.22 × 831,909.70
  4. Step 4: Simplify right side
    1,520,237.70x = 1,745,286,836,121.73
  5. Step 5: Solve for x
    x = 1,745,286,836,121.73/1,520,237.70
  6. Step 6: Final answer
    x = 1,148,035.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.